ISSUE: After USB Suspend, a system rarely freezes. CAUSE: When USB Suspend occurred, the driver is not notifying a gadget of the event.
commit: 84566abba058b2aae8d603dfa90b5a3778a6714f kernel version: 3.0, 3.2, 3.3 Cc: [email protected] Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Tomoya MORINAGA <[email protected]> --- v2: Retrieve cc-/Signed-off lists. --- drivers/usb/gadget/pch_udc.c | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletions(-) diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c index 96606b6..842ca63 100644 --- a/drivers/usb/gadget/pch_udc.c +++ b/drivers/usb/gadget/pch_udc.c @@ -2475,8 +2475,15 @@ static void pch_udc_dev_isr(struct pch_udc_dev *dev, u32 dev_intr) if (dev_intr & UDC_DEVINT_SC) pch_udc_svc_cfg_interrupt(dev); /* USB Suspend interrupt */ - if (dev_intr & UDC_DEVINT_US) + if (dev_intr & UDC_DEVINT_US) { + if (dev->driver + && dev->driver->suspend) { + spin_unlock(&dev->lock); + dev->driver->suspend(&dev->gadget); + spin_lock(&dev->lock); + } dev_dbg(&dev->pdev->dev, "USB_SUSPEND\n"); + } /* Clear the SOF interrupt, if enabled */ if (dev_intr & UDC_DEVINT_SOF) dev_dbg(&dev->pdev->dev, "SOF\n"); -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
